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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: DaveRS23]
#723719
03/02/13 02:25 AM
03/02/13 02:25 AM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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Quote:
I just got my set-up fired up today. The fan works great! I even blocked the radiator with cardboard so that the temp would go up to 200* and the fan would wind up. When I removed the cardboard, the temp came right down to the point that the fan shut off.
I like this fan and controller combo. We've needed this for a long time.
How load was the fan on "high" to you, with the motor running?
Did you time how long it took to get from 200* till it shut off? 
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: thehemikid]
#723721
03/02/13 09:43 PM
03/02/13 09:43 PM
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Joined: Jan 2003
Posts: 13,276
Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 13,276
Benton, IL.
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Quote:
Quote:
I just got my set-up fired up today. The fan works great! I even blocked the radiator with cardboard so that the temp would go up to 200* and the fan would wind up. When I removed the cardboard, the temp came right down to the point that the fan shut off.
I like this fan and controller combo. We've needed this for a long time.
How load was the fan on "high" to you, with the motor running?
Did you time how long it took to get from 200* till it shut off?
The fan did not seem loud at all to me, but I have open headers right now. It did not take long to drop the temp, but I didn't time it. Even with the rad blocked 3/4s or more, the fan kept ramping up trying to maintain the temp and it took a good while for the temp to get up to 200*ish.
Although I have not had this out of the garage yet, it has excelled at every test I can figure to throw at it.
Master, again and still
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: DaveRS23]
#723722
03/03/13 12:15 AM
03/03/13 12:15 AM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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Yeah, you want really know till you put the rest of the exhaust on.
The time frame: I know there's a lot of variables from car to car, was just looking for something to ~ go by.
I just tested the fan on a bench today, & it appears to move more air than my twin SPA's in My Cuda. That's what I was hoping for. Wish I had an Anemometer. I know speed & volume are 2 different things.
Last edited by thehemikid; 03/03/13 12:35 AM.
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: thehemikid]
#723723
03/03/13 01:05 PM
03/03/13 01:05 PM
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Joined: Jan 2003
Posts: 13,276
Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 13,276
Benton, IL.
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Quote:
Yeah, you want really know till you put the rest of the exhaust on.
The time frame: I know there's a lot of variables from car to car, was just looking for something to ~ go by.
I just tested the fan on a bench today, & it appears to move more air than my twin SPA's in My Cuda. That's what I was hoping for. Wish I had an Anemometer. I know speed & volume are 2 different things.
I just got back from the Indy show with a few goodies. Some of which may get put into service today. I thought it was a good show. But I did hear several vendors say that there seemed to be plenty of people there, but that sales were slow.
I plan on working on the Dart today and may well be able to time the temp draw down while doing other things.
As a mine examiner I have experience with anemometers. Without knowing how much air it would take to cool a particular combo, air flow readings are not much help. In other words, you have to know how much air volume you need to do a job before you know what adjustments you must do to the volume you have.
Master, again and still
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: feets]
#723724
03/07/13 11:34 AM
03/07/13 11:34 AM
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Joined: Jan 2003
Posts: 13,276
Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 13,276
Benton, IL.
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I am very happy with this fan and controller set-up. It all works as well as I had hoped. But I do need a little electrical help in one area.
I swapped in a constant voltage limiter to drive the temp and gas guages. It puts out almost exactly 5v. But both guages read a little high.
They read in the 3/4 range when they should be in the 1/4 range. Not too far off, but I would like to see if I can get them down a little.
Is it advisable to put a resistor between the limiter and the dash to drop the voltage a little? Just enough to drop the needles about 1/2 the width of the guages.
If so, could I get some advise on where to start with a resistor as to sizing. We have a Radio Shack nearby. They don't have much else, but do have a good selection of resistors.
Any help here would be appreciated.
Thank you!
Master, again and still
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: DaveRS23]
#723725
03/07/13 12:56 PM
03/07/13 12:56 PM
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Joined: Jan 2003
Posts: 28,123
Irving, TX
feets
OP
Senior Management
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OP
Senior Management
Joined: Jan 2003
Posts: 28,123
Irving, TX
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You might want to start a new thread about that one.
Andrewh has looked into that stuff more than I have but a new thread might draw people more familiar with it.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: feets]
#723726
03/07/13 01:40 PM
03/07/13 01:40 PM
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Joined: Oct 2007
Posts: 3,953
Oregon
hooziewhatsit
master
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master
Joined: Oct 2007
Posts: 3,953
Oregon
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Are you using the stock sending unit, or are you using the controller to drive the temp gauge?
If you ever find yourself in a fair fight, your tactics suck.
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: hooziewhatsit]
#723727
03/07/13 04:09 PM
03/07/13 04:09 PM
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Joined: Jan 2003
Posts: 13,276
Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 13,276
Benton, IL.
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The controller.
I have about 1/4 tank of gas and the fuel guage reads 3/4. And when the engine is 170ish, the temp guage also reads about 3/4. I can ground their respective sender input leads and each guage will go all the way to their respective max. So the guages appear to work fine.
I just thought it would be easiest to experiment with a lower voltage to the guages, since they both seem to be a bit high. But then, I know little to nothing about this subject.
Master, again and still
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: Andrewh]
#723729
03/07/13 05:35 PM
03/07/13 05:35 PM
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Joined: Jan 2003
Posts: 13,276
Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 13,276
Benton, IL.
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The VR is a small white ceramic unit. I don't remember who built it. The voltage is almost exactly 5v. The car is a 68 Dart. Access is pretty good and I believe that I have the room to do what I need to do there. I had a buddy recommend diode #1N4001 which should drop the voltage .6 or .7 volt without too much heat. I expect to have to experiment a little to get it where it needs to be, but I need a starting place. Thanks for the advice.
Master, again and still
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: Andrewh]
#723731
03/09/13 10:22 PM
03/09/13 10:22 PM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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My plug & wires came in yesterday. A friend dropped them off today. The first thing I noticed was the grommet on the larger wires were smaller than their sockets.  Then I noticed the wire itself was smaller than what I had seen on this thread. ...  ...continued next post...
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: rapom]
#723736
03/11/13 03:59 PM
03/11/13 03:59 PM
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Joined: Jan 2003
Posts: 28,123
Irving, TX
feets
OP
Senior Management
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OP
Senior Management
Joined: Jan 2003
Posts: 28,123
Irving, TX
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The 36 number is the correct part. Those wires are not that thick but they have a heavy insulation.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
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Re: Monster electric cooling fan upgrade. long. w/photos.
[Re: feets]
#723737
03/11/13 07:56 PM
03/11/13 07:56 PM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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Quote:
The 36 number is the correct part. Those wires are not that thick but they have a heavy insulation.
...that was the conclusion I came to with the previous info of...
36=4mm...that would be ~.157"
37=6mm...that would be ~.236"
...then I knew it wasn't (most likely) the internal wire itself.
I do understand the 50 amp is a spike at start up & is not constant, but runs at ~39.
Thanks again!
Waiting now on if they will swap the 40's in on the 36's. 
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